| 摘要 |
<p>A voice/music signal encoder/decoder having a band-division structure for well encoding voice/music signals over the full band. A residual vector is generated by means of an inverted filter (230 ) from a differential vector outputted from a first differential unit (180). A band selecting circuit (250) generates n sub-vectors from an orthogonally-transformed residual vector by using components contained in an arbitrary band. An orthogonal transformation coefficient quantizing circuit (260) quantizes the n sub-vectors.</p> |
